>Yuri,
>I use AMOUSEOBJ(), but the trick is calling it. I can't seem to find any combination of events that will fire my code. The toolbox app that comes with VFP seems to be able to drop objects on a container class without requiring that every possible class that can have an object dropped on it have custom dragdrop code. Even when I put code in the dragdrop method, I can't get it to fire unless the form in running. How does one get the target form to run it's dragdrop code in design time? Thanks.

You can't. VFP code doesn't run during design time, unless you're doing a builder. I don't see how to get there from here.